Carbureter for explosive-engines.



No. 734,848. PATENTED JULY 23, 1903 W. A. GILL. OARBURETER FOR EXPLOSIVE ENGINES.

APPLIOATION FILED APR. 10. 1902.

N0 MODEL.

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NITED STATES Patented July 28 1903.

PATE T OFFICE.

OARBURETER FOR EXPLOSlVE-ENGINES.

SPECIFICATION forming part ofLettrs Patent N0. 7 34,848, dated July 28, 1903.

' .llpplioation filed Aprii io. 1902'. Serial No. 102.269. (No model.)

To all whom i it may concern:

Be it known that I, WILLIAM A. GILL, a citizen of the United States, residing at Portland,

' in the county of Multnomah and State of Oregon, have invented certain new and useful 1m provements in Oarbureters for Explosive-En gines; and I do. declare the following to be a L full, clear, and exact descriptionof 'the invention, such as will enable others skilled in the art to which it appertains to make and use the This invention relates to means for mixin pand regulating the supply of air and a liquid fuel, such as gasolene or any other suitable volatile oil or hydrocarbon, to the cylinders of explosive-engines, and has for its object to provide a feeding and mixing device which is simple of constructiomreliable and" eflicient in'operation, and designed to preserve definite relations in the proportions of the air and vapor forming the explosive mixture and greater homogeneity in the admixture, therei by obtaining increased efficiency in the work- .ing of the engine. i

The invention consists of certain novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claims. I A practical embodiment of the invention is represented in the accompanying drawings, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a central vertical section of a feed-cup and mixer embodying my invention. Fig. 2 isa similar section taken at right angles to that shown in Fig. 1. Fig. 3 is a face view of the hand wheel or disk of the feed-valve. Referring now more particularly to the drawings, the numeral 1 represents an outer casing or shell,within which is concentrically disposed ,a vertical tube 2,.forming with suitable top and bottom'caps 3 and 4 a feed-cup or reservoir 5 to hold a definite supply of liquid fuel, and a mixing chamber or passage 6, in which the fuel is commingled with air .to produce the explosive mixture. The tube 2 extends downward through the cap 3 and is formed at its upper end with a head or shoulder 7 to rest thereon and threaded at its lower end 8 to engage a threaded flange 8, rising from the cap 4, whereby the parts are united and the shell 1 clamped between the caps.

Packing-rings 9 are interposed between both 4 caps and the upper and lower ends of the shell 1 1 and between the bottom cap and lower end connection with an air pipe or passage lead-' ing thereto from any suitable point, but may be left open for the direct entry of air, if desired. It will thus be seen that the tube 2 will form an uninterrupted air-passage connecting when the device is attached to a motor the inlet or suction portof the motor with the atmosphere. An inlet opening 10 is formed in the cap 3 to maintainatmospheric pressure on the surface of the ervoir 5.

oil in the res- The bottom cap 4 is provided with passages 11 and 12, communicating with the lower end 'of the reservoir 5. The passage 11 is designed for connection with a pipe leading from a pump which supplies oil to the reservoir from a suitable supply-tank, while the passage 12 is adapted for connection with a pipe for conveying back to the tank any surplus oil which may be supplied to the reservoir 5. The level of the oil in the reservoir is determined and maintained by an overflow-pipe 13, into which the excess oil flows and is conducted to the passage 12 tobe returned to the tank. The

tank, pump, motor, and connecting-pipes are not herein shown, as the manner of connecting up these parts will be apparent to those versed in the art. 7 i

The oil is supplied to the mixing-chamber from the reservoir through afeed-passage 14, formed in the cap 4, and communicating with this passage is a feed-tube 15, which extends up into said chamber to a point above the level of the oil in the reservoir 5. In the operation of the engine or motor when the piston moves away from the closed end of the "cylinder a partial vacuum is formed, which causes the air to rush through the tube 2 and through the passage leading therefrom to the motorcylinder. By this means a partial vacuum is also created in the air-passage and mixingchamber 6, which causes a definite quantity of oil to spurt in the form of spray from the tube 15 and commingle with the air, thus producing the explosive mixture. By this mode "of feeding the oil the exact amount or proportion to be admixed with the air to form the explosive mixture is supplied and a more thorough and effective commingling of the vapor and air insured, so that a mixture combining the elements in the proper proportions to explode will at all times be conducted to the motor-cylinder. A needle-valve 1 6 is provided for regulating the flow of oil through the passage 14 and extends through a stuffing-box 17 to the exterior, where it is provided with a hand wheel or-disk 1.8 for adjusting it. This wheel or disk bears upon its outer face the words Start and Run or suitable marks or indices which cooperate with a hand or pointer 19, extending from the cap 4, to inviewed, as before stated, so that a casual inspection will show whether or not the oil is in proper condition for use or the carbureter requires cleaning.

From the foregoing description, taken in connection with the accompanying drawings,

it is thought that the construction, mode of operation, and advantages of my improved carbureter will be readily understood Without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is

l. A carbureter for explosive-motors comprising an outer shell, detachable heads closing the upper and lower ends of the shell, the lower head being provided with an inlet-passage, an outlet-passage and an oil-feed passage and having an air-inlet with an upwardlyextendingthreaded portion, an air-tube concentrically arranged within the shell and forming an air-passage and with the shell an oil-reservoir, said reservoir being'in communication with the inlet and outlet passages and connecting with the air-passage through the oil-feed passage, the tube passing through the upper head and having an enlarged upper end to bear upon said head and a threaded lower end engaging the upwardly-extending threaded portion of the lower head, an over flow-pipe in the reservoir communicating with the outlet -passage, a feed -pipe in the tube communicating with the oil-feed passage, and a valve governing the oil-feed passage, substantially as specified.

2. In a carbureter, an outer shell, heads closing the upper and lower ends of the shell, and a tube concentrically arranged within the shell and passing through the upper head, said tube being provided with an enlarged upper end bearing on the outer surface of the upper head and threaded at its lower end to the lower head,whereby the shell is clamped between the heads and the parts held assembled, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WILLIAM A. GILL. 

